Compress multiple OR-conditions in VBA code - excel

Question

I use the following code to allow users to write a value into Cell A1.
Sub TestUsername()
If Environ("Username") = "firstname1.lastname1" Or Environ("Username") = "firstname2.lastname2" _
Or Environ("Username") = "firstname3.lastname3" Or Environ("Username") = "firstname4.lastname4" Then
Sheet1.Range("A1").Value = 1
Else
Sheet1.Range("A2").Value = 2
End If
End Sub
As you can see I list each user who is allowed to enter a value into Cell A1 with an OR-condition in my VBA code. All this works fine.
Now, I was wondering if there is an easier way to do this. Something like this:
Sub TestUsername()
If List of or-conditions: {"firstname1.lastname1", "firstname2.lastname2", _
"firstname3.lastname3", "firstname4.lastname4"} = True Then
Sheet1.Range("A1").Value = 1
Else
Sheet1.Range("A2").Value = 2
End If
End Sub
I just know in PHP you can compress multiple conditions like here. Therefore, I thought this might also be possible for VBA programming.

Answer 1

Maybe something like this
Sub TestUsername()
Select Case Environ("Username")
Case "firstname1.lastname1", "firstname2.lastname2", "firstname3.lastname3"
Sheet1.Range("A1").Value = 1
Case Else
Sheet1.Range("A2").Value = 2
End Select
End Sub

Answer 2

I suppose, if you had an atrocious amount of conditions, you could stick them in an array and then simply replace your conditional statement
If Environ("Username") = "firstname1.lastname1" Or Environ("Username") = "firstname2.lastname2" _
Or Environ("Username") = "firstname3.lastname3" Or Environ("Username") = "firstname4.lastname4" Then
with this
If IsInArray(Environ("Username"), arr) Then
This does require that you dimension an array with the conditions first and use this function, however:
Public Function IsInArray(stringToBeFound As String, arr As Variant) As Boolean
Dim i
For i = LBound(arr) To UBound(arr)
If arr(i) = stringToBeFound Then
IsInArray = True
Exit Function
End If
Next i
IsInArray = False
End Function
This way, your code becomes much more readable and easy to maintain.

Answer 3

Since you're working in a cell, you might want to define the allowed usernames within the spreadsheet.
Here's how the spreadsheet table might look:
And here's the code you might use:
Sub TestUsername()
Dim username As String
Dim userInTable As Integer
Dim allowedUserRange As Excel.Range
username = Environ("username")
Set allowedUserRange = Excel.Range("tUsers")
userInTable = Excel.WorksheetFunction.CountIf(allowedUserRange, username)
If userInTable Then
Sheet1.Range("A1").Value = 1
Else
Sheet1.Range("A1").Value = 2
End If
End Sub

Answer 4

The Select Case provides a great solution to testing multiple conditions at the same time. I am using this to alert the user when they have not furnished all the required inputs. I am monitoring inputs from a number of Drop Down Boxes as well as some direct cell inputs.
Select Case True
Case Range("Customer_DD_Control_Cell") > 0 _
And Range("Dealer_DD_Control_Cell") > 0 _
And Range("Rep_DD_Control_Cell") > 0 _
And Range("Product_DD_Control_Cell") > 0 _
And Len(Range("Customer_State_Input")) > 0 _
And Len(Range("Contract_Date_Input")) > 0
Case Else
MsgBox "You have not completed the required inputs"
End Select